aug 272013
 
Chelyabinsk Meteorite had Previous Collision or Near Miss

  The Chelyabinsk meteorite either collided with another body in the Solar System or came too close to the Sun before it fell to Earth, according to research announced today (Tuesday 27th August) at the Goldschmidt conference in Florence. A fragment of the Chelyabinsk meteorite, showing the fusion crust — the result of a previous [continue reading]

feb 272013
 
New Answers about the Russian Explosion

  When the Sun rose over Russia’s Ural Mountains on Friday, Feb. 15th, many residents of nearby Chelyabinsk already knew that a space rock was coming. Later that day, an asteroid named 2012 DA14 would pass by Earth only 17,200 miles above Indonesia. There was no danger of a collision, NASA assured the public. In [continue reading]